Add Mario & Luigi game

[marjuanm]

Mario Bros fangame that works under MS-DOS, in versions of Windows 9x it works without problems, in Windows XP I haven't had the opportunity to try it, but in more recent versions of Windows it only works from DosBox, but in Reactos it works perfectly.

[marjuanm]

DOS game running on Reactos directly:

[learn-more]

@marjuanm you have both games in this PR now.

Please create a branch per pull request, because new pushes to a branch with an open pull request end up in that PR.